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  2. Optic neuritis - Wikipedia

    en.wikipedia.org/wiki/Optic_neuritis

    Magnetic Resonnance Imaging (MRI) during an episode of optic neuritis. Advanced imaging using optical coherence tomography (OCT) is very sensitive reveal damage to the optic nerve. The OCT shows corresponding optic disc swelling acutely or an inter-eye difference in the thickness of the neurons and their nerves connecting the eye with the brain ...

  3. Neuromyelitis optica spectrum disorder - Wikipedia

    en.wikipedia.org/wiki/Neuromyelitis_optica...

    Additional MRI findings for absent/unknown AQP4-IgG Optic neuritis: Either 1) brain MRI showing normal findings or only nonspecific white matter lesions, or 2) optic nerve MRI showing T2-hyperintensity, or T1 enhancing lesion, greater than 1/2 optic nerve length or involving optic chiasm Acute myelitis

  4. Visual pathway lesions - Wikipedia

    en.wikipedia.org/wiki/Visual_pathway_lesions

    Lesions involving the whole optic nerve cause complete blindness on the affected side, that means damage at the right optic nerve causes complete loss of vision in the right eye. [3] Optic neuritis involving external fibers of the optic nerve causes tunnel vision. [4] Optic neuritis involving internal fibers of the optic nerve causes central ...

  5. Chronic relapsing inflammatory optic neuropathy - Wikipedia

    en.wikipedia.org/wiki/Chronic_relapsing...

    Magnetic resonance imaging can capture optic nerve inflammation, but this finding is not present in all patients, [1] [3] [13] Diffusion tensor imaging has been shown to detect widespread white matter abnormalities in CRION patients with normal MRI findings. [14] Five diagnostic criteria had been proposed in 2014: [3] History of optic neuritis ...

  6. Optic neuropathy - Wikipedia

    en.wikipedia.org/wiki/Optic_neuropathy

    Optic neuritis, when combined with the presence of multiple demyelinating white matter brain lesions on MRI, is suspicious for multiple sclerosis. Several causes and clinical courses are possible for the optic neuritis. It can be classified in: Single isolated optic neuritis (SION) relapsing isolated optic neuritis (RION)

  7. Non-arteritic anterior ischemic optic neuropathy - Wikipedia

    en.wikipedia.org/wiki/Non-arteritic_anterior...

    Concurrently, magnetic resonance imaging (MRI) of the optic nerves plays a pivotal role in distinguishing NAION from optic neuritis, a condition with similar symptoms. Notably, MRI revealed optic nerve abnormalities in only a small fraction (15.6%) of NAION patients, compared to almost all (96.9%) patients with optic neuritis.

  8. Optic papillitis - Wikipedia

    en.wikipedia.org/wiki/Optic_papillitis

    Retrobulbar neuritis, an inflamed optic nerve, but with a normal-appearing nerve head, is associated with pain and the other findings of papillitis. Pseudopapilledema is a normal variant of the optic disk , in which the disk appears elevated, with indistinct margins and a normal vascular pattern.

  9. Papilledema - Wikipedia

    en.wikipedia.org/wiki/Papilledema

    Local lesion: optic neuritis, Ischemic optic neuropathy, ... Imaging by CT or MRI is usually done to find out whether there is a structural cause i.e., tumor.

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